機器
abstract
aluminum
background
black
blades
blow
circle
conditioner
conditioning
cool
cooler
cooling
dark
equipment
fan
gray
grid
grille
hexagon
hexagonal
hole
honeycomb
industrial
industry
iron
lattice
latticed
machinery
macro
mesh
metal
metallic
object
pattern
perforated
perforation hexahedron
power
propeller
protection
shiny
steel
technology
texture
turbine
vent
ventilation
ventilator